Mystery paddle tug.

[Walter Snowdon]

HHi folks, I have just found the plans for a British style paddle tug on a Czech web site, called PT STRONGBOW. I have searched all my British tug lists and Llloyds register, but no tug of that name can be found. The plan is very highly detailed and  must be of an existing ship, but which one?. To compound the mystery, the card model Company SCHREIBER do a card model of... you guessed it-  STRONGBOW  !!. anyone out there seen any reference to this tug anywhere ? cheerio, Walter.